Green Energy WA Solar Energy News

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Wednesday, 25 April 2012

An Overview Of Solar Energy And Other Renewable Energy Sources

When we talk about renewable energy we are referring to power that delivers energy from resources that will not be depleted because of our use of them. Renewable energy is an alternative to non-renewable fossil fuel energy for reasons other than the factor of non-depletion.

One basic benefit of renewable energy, and the reason environmentalists all over the globe are advocate its use, is that it does give off greenhouse gases and other harmful pollutants as do the by-products of burning fossil fuel for energy. Renewable energy such as solar power, water power and wind power, while the widespread discussion of which is new, are anything but new.

In both newly developing and highly developed countries wind, sun and water have long been used as power sources, though not to the extent of providing the primary energy source for large metropolitan communities.

The mass production of such renewable energy is become commonplace in recent years as more and more people come to realise how climate is changing due to the pollution of fossil fuel gases, due to the exhaustion of the availability of these fossil fuels and the political and social concerns of energy sources such as nuclear power.

Many countries and non-profit environmentally-conscious organisations are encouraging the use of renewable energy sources by passing legislation on tax incentives for their use and subsidies to offset the added expense of converting from fossil fuel to renewable energy.

The flow of renewable energy involves phenomena that occur naturally in our world. Tides, sunlight, wind and heat derived by geothermal occurrences all provide renewable energy. Each of these energy sources is unique both in where we can use them and how.

Most technology that converts renewable energy into power sources we can use are powered at least in part by the Sun if not directly at least indirectly. The earths atmospheric system stays in such equilibrium that the heat that it gives off radiates into space to an amount equal to the radiation that comes to earth from the sun.

The result of this energy level within the atmosphere is roughly translated to the climate of the earth. The water of the earth, also referred to its hydrosphere, absorbs a lot of the radiation that comes to us from the sun.

Most of the radiation gets absorbed at the lower latitudes of the earth that exist around the equator. This energy gets dissipated all around the globe, however, in the form of ocean and wind currents.

The motion of the ocean waves might have a role in transference of mechanical energy between the ocean and the earths atmosphere by way of wind stress. Solar energy also provides the means by which precipitations is distributed and then tapped by hydroelectric energy projects as well as plant growth that then creates biofuels.

story brought to you by - Green Energy WA

Thursday, 12 April 2012

Night Time Solar

In the solar Gemasolar central, a cloudy sky is no reason for depression: thanks to the aunique technology, the energy stored during the sun shines is used to produce electricity at night or on rainy days.

The site has been operational since May 2011, has not gone unnoticed in the plains of Andalusia, in southern Spain.

From the motorway between Seville and Cordoba, you can observe the tower within which 2650 solar panels of 120 square meters each lit up, arranged in a huge circle of 195 hectares.

“This is the first plant in the world who works 24/24, a solar power plant that operates day and night!” says Santiago Arias, technical director of Torresol Energy, which manages the facility.

“Its mechanism is very easy to explain,” he promises, “the panels that reflect the sun’s rays towards the tower generate an amount of energy that’s equivalent to 1000 times of what we have on the ground.”

The energy is stored in a tank filled with molten salt at a temperature greater than 500 degrees. Salts are used to produce steam to turn a turbine and produce electricity as well as in a conventional thermal plant.
Basma – International Green Energy Correspondent – 06/04/2012

Wednesday, 11 April 2012

French Urban Solar Parc

The Largest French Urban Solar Parc, Coming Soon...

In May, the city of Bordeaux will have the largest solar energy park in France located in the urban areas. With its 61,500 solar panels and its 20 hectares of surface, the central Bordeaux-Lac saves 1,700 tons of CO2 emissions.

Solar Panels Covering 7,000 Parking Spaces
This park  is installed in the parking lot of the Exhibition of the city of Bordeaux. It thus covers 7,000 parking spaces. In general, there are 78,500 m2 of installed panels. This project, which lasted 10 months will cost a whopping € 55 million, all financed by EDF EN.

A Production Of 13,000 Mwh Per Year
The solar panels will produce 13 000 MWh per year which is an average power generation for 5000 homes. Ultimately, the goal of the city of Bordeaux is to use 23

Basma – International Green Energy Correspondent – 06/04/2012

USA Student create solar car

American students were able to make a car that can go for 322 km with only 3.78 liters. This successful performance is the result of installing solar panels on the hood of the vehicle. The “Lost Solar Racing" won the "Shell Eco-marathon" in Houston over the weekend.
This solar car is currently a developing prototype; but the idea to eventually produce cars for general public is there. Currently, this vehicle would cost 76,500 euros.

Basma – International Green Energy Correspondent – 06/04/2012